Kowa Nonmyd WX 3D Instruction Manual
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Kowa Nonmyd WX 3D Instruction Manual

2d/3d non-mydriatic retinal camera
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2D/3D Non-mydriatic Retinal Camera
Kowa
INSTRUCTION MANUAL
EU
KOWA nonmyd WX

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Summary of Contents for Kowa Nonmyd WX 3D

  • Page 1 2D/3D Non-mydriatic Retinal Camera Kowa INSTRUCTION MANUAL KOWA nonmyd WX...

  • Page 3: Introduction

    Accept our congratulations on your purchase of KOWA nonmyd WX. KOWA nonmyd WX is a Non-mydriatic retinal camera for mono and stereo retinal photography. This manual provides a description of the operation procedures of KOWA nonmyd WX and important precautions to be observed during its use.
  • Page 4 Continued use of the instrument may cause the instrument to malfunction or cause a fire. Con- tact Kowa or your Kowa dealer for inspection immediately. When replacing the flash lamp, make sure the instrument is turned OFF and then unplugged from the power outlet.
  • Page 5 Caution Do not pull the power supply cable when unplugging. Doing so may damage the cable and cause a fire or electrical shock. Be sure to hold the plug when unplugging. Do not plug or unplug the power supply cable with wet hand. Otherwise, there may occur electrical shock.

  • Page 6: Meanings Of Symbols

    Meanings of symbols Symbol for “Type B applied part”. Symbol for “Caution”. Symbol for “Power ON”. Symbol for “Warning High-voltage”. Symbol for “Power OFF”. Symbol for “Warning High-temperature”. Symbol for “MANUFACTURER” Symbol for “AUTHORISED REPRESENTATVE N THE EUROPEAN COMMUNITY”...

  • Page 7: Operating Precautions

    3) Kowa is not liable for malfunctions and/or damages resulting from maintenance and/or repairs performed by the third party other than an agent authorized by Kowa. 4) Kowa is not liable for malfunctions and/or damages resulting from maintenance and/or repairs using parts other than repair parts specified by Kowa.

  • Page 8: Precautions: Use Of Medical Electrical System

    IEC or ISO provisions applicable to such a non-medical electrical equipment. 5) Do not use any additional multi-tap or extension power cable other than those Kowa specified to this system. 6) Power supply to this system or “Multi-tap with Isolation Transformer” must be provided individually. (Do not route the power supply through other multi-tap to the system or “Multi-tap with Isolation Transformer”.)
  • Page 9 ● Combination of medical electrical equipment and non-medical electrical equipment IEC 60601-1-1 “Safety requirements for medical electrical systems” describes the components combination grouped into various clinical settings. The brief overview of EC 60601-1-1 is shown below. Medically used room Feasible solution Non-medically nside Outside...

  • Page 10: Operational Considerations For Hospital Grade Electrical Instrument (Safety And Accident Prevention)

    5) The instrument must be cleaned prior to use so that there will be no problem when using it again. 6. In case of a problem or malfunction, stop the operation and contact Kowa or your Kowa dealer for repair.

  • Page 11: Accessories

    Accessories Main body:1 Power supply cable:1(2.5m) USB cable(Type A-B):1(3m) digital camera:1 Chin rest paper USB cable(Type A-Mini-B):1(3m) Chin rest paper:1 retaining pin:2 Blower:1 Fuses:2 Dust cover:1 Instruction manual:1 Filing software:1 User’s guide:1 Installation manual:1 Optional accessories External fixation target:1 PC (filing software) :1 Numerical keypad:1 K9L-LE57 OS : Windows XP/VSTA...

  • Page 12: Table Of Contents

    Contents Introduction ..........I Operational procedure in photography .. 6 Meanings of symbols ........IV Normal, SP, and stereo modes ....16 Precautions for continuous photography..22 Operating precautions .......V Terminating photography......22 Precautions: use of medical electrical Advanced photography ......23 system ............VI Mosaic mode photography ......

  • Page 13: System Description

    System description 1.1 Intended use KOWA nonmyd WX is intended for use with retinal image capturing without mydriatic. The retinal image can be stored to an image filing drive through serial interface. 1.2 System overview This system is an instrument that enables retinal examination and retinal image capturing using infrared rays without re- quiring the patients to take any mydriatics and uses the normal or stereo light path to capture, record and display images.

  • Page 14: Name And Function Of Each Component

    System description 1.4 Name and function of each component Diopter compensation knob LCD monitor f cannot in-focus by turning Black-and-white live image the focusing knob, pull the of the anterior segment and diopter compensation knob retinal appears for you to to make (-) or (+) compensa- use for alignment and fo- tion until the focus point is...
  • Page 15 1.4 Name and function of each component Operation panel Retinal observation light Internal fixation target selection button intensity control knob Switch the internal fixation target position to posterior, optic disc, and center of mac- ula by pressing this button to go through these selections in normal mode. (n stereo Used for adjusting light intensity mode, pressing this button goes through optic disc, center of macula and then poste- during retinal observation.
  • Page 16 System Description Anterior segment observation lamp nfrared LED lamp that illu- minates when the anterior segment is observed. Forehead rest Used for resting the patient’s forehead against it. Eye level mark Focusing knobs Used for aligning the verti- cal position of the patient’s Knobs located on both sides of the , used for focusing.
  • Page 17 1.4 Name and function of each component Power supply unit Power switch Fuse holder | :ON :OFF Cable clamps Used for holding cables to keep them from being disconnected. Electrical supply inlet External fixation target Air vent connecting terminal A terminal which you connect an external fixation target (op- Image output terminal tional accessory: K9L-LE57).
  • Page 18 System description Monitor screen indications Anterior segment observation display 1 Anterior 0 Field angle “ANTERIOR” indicates that the instrument is currently This indicates the field angle currently selected. Normal or SP mode : 45˚ showing the anterior segment observation display. Stereo mode : 20˚...
  • Page 19 1.4 Name and function of each component Retinal observation display H Retinal working dot position aids E Fixation target position This indicates the fixation target position currently turned on. These aids appear during retinal observation for you to Normal, SP, and stereo modes adjust the working dots.

  • Page 20: Installation

    Installation 2.1 Installing the system 1 Place the instrument on a powered optical table (optional accessory). observe the following precautions when moving the instrument. • Fasten the moving component fixing screw. • Put your hands under the power supply unit and lift the instrument as shown in the right figure.
  • Page 21 The digital camera needs to be disconnected from the instrument when the instrument is to be relocated or the in- side of the digital camera is to be cleaned. In such a case arises, contact Kowa or your Kowa dealer in advance for the correct procedures and precautions for detaching the digital camera.

  • Page 22: Nstalling External Device (Optional Pc)

    EN60601-1-1(EC60601-1-1). The system administrator who builds such system bears all responsibility to have the system comply with requirement of EN60601-1-1(IEC60601-1-1). Should you have any question, contact Kowa sales representative or dealership. 2.3 Connecting PC Connect the image output terminal (PC:mage) of this instrument to an USB terminal of the PC using the USB cable (Type A-B) provided with the instrument.

  • Page 23: Saving Captured Images

    Captured images saved in a SD card may be displayed on the LCD monitor of the digital camera. The images may be printed out connecting the digital camera to a printer. Contact Kowa or your Kowa dealer for details. x The photographed images are not saved in the SD card when the instrument is connected with the PC.

  • Page 24: Basic Operation

    Basic operation 4.1 Moving component fixing screw Completely loosen the moving component fixing screw before starting any photography using this instrument. Completely tighten the moving component fixing screw before moving this tighten instrument to other installation site. loosen 4.2 Coarse motion: moving the optical head base for a long distance In order to move the optical head base for a slight distance, move the control lever lengthwise or crosswise while holding the lever tightly in upright position.

  • Page 25: Preparations For Photography

    Preparations for photography 5.1 Preparing the instrument 1 Make sure that the moving component fixing screw is completely loosened. 2 Make sure that the instrument is correctly connected to the PC. Make sure that the PC is turned ON and the application software is started. 3 Remove objective lens cap.

  • Page 26: Preparations For Patient's Eye Examination

    Preparations for photography 5.2 Preparations for patient’s eye examination 1 Reduce room’s illumination as bright as to make letters on this manual barely readable so that patient’s pupil can naturally turn to the size of pupil diameter aid or greater. 2 nstruct the patient to take off his or her glasses or contact lenses.

  • Page 27: Operational Procedure In Photography

    Operational procedure in photography 6.1 Normal, SP, and stereo modes The chart shown blow describes the operation procedure in normal, SP, and stereo modes. Details of items shown in the chart are described on the following pages. ] Preparing this instrument Preparations for Turn ON the power ] Preparations for patient’s eye examination...
  • Page 28 Operational procedure in photography 6.1.1 Selecting a photography mode Select a photography mode by pressing “Normal”, “SP”, or “Stereo” button. Check that the mode you have selected is shown on the upper left corner of LCD monitor. SP mode Normal mode Stereo mode 6.1.2 Selecting an internal fixation target...
  • Page 29 6.1 Normal, SP, and stereo modes 6.1.3 Checking anterior segment observation display Make sure that “ANTERIOR” is shown in the upper part of LCD monitor. Press anterior segment button when “ANTERIOR” is not shown. 6.1.4 Guiding patient’s fixation nstruct the patient to look straight ahead. Perform the step described in “6.1.5 Alignment”.
  • Page 30 Operational procedure in photography 6.1.6 Checking pupil diameter Check the condition of dilation by comparing the patient’s pupil diameter against the pupil diameter aid. Change the photography light intensity as required depending on the mydriatic state. If the patient’s pupil diameter is smaller than that shown by the pupil diameter aid, press SP mode button to proceed to small pupil photography.
  • Page 31 6.1 Normal, SP, and stereo modes 6.1.8 Checking eyelids and eyelashes The eyelids or eyelashes intruding the pupil area interferes photography. In such a case, Instruct the patient to widely open his or her eyes, or • • You or your assistant help the patient keep the eye wide open. 6.1.9 Switching from anterior segment observation to retinal observation After alignment of the anterior segment is completed, press anterior segment...
  • Page 32 Operational procedure in photography 6.1.10 Adjusting observation light intensity Retinal observation light intensity Adjust the image brightness by retinal observation light intensity control knob control knob when the retinal image, focus dots, and working dots are not clearly shown. For details of LCD monitor brightness and contrast adjustment, refer to “9.4.6 MONITOR BRIGHTNESS / CONTRAST”.

  • Page 33: Precautions For Continuous Photography

    6.1 Normal, SP, and stereo modes / 6.2 Precaution for continuous photography / 6.3 Terminating photography 6.2 Precautions for continuous photography Please note that the LCD monitor automatically switches back to anterior segment observation. * When you continue photographing, note the precautions described below. 3 You may disable the anterior segment observation auto-return function by changing the setting.

  • Page 34: Advanced Photography

    Advanced photography 7.1 Mosaic mode photography Mosaic mode photography has its own internal fixation target selection and positioning different form that of Normal or SP mode. n this section only these differences are described. Preparing this instrument Preparations for patient’s eye examination Preparations for Turn ON the power Press mosaic button and check that “MOSAIC”...
  • Page 35 7.1 Mosaic mode photography 7.1.1 Selecting mosaic mode photography Press mosaic button (the button above “MENU” button). You can switch between Normal mode and SP mode during mosaic mode photography. 7.1.2 Selecting an internal fixation target Internal fixation target selection button becomes disabled during mosaic mode photography. Mosaic mode photography has two types of internal fixation target setting methods, “AUTO”...
  • Page 36 7 Advanced photography Switching the internal fixation target in mosaic mode photography – Use in manual mode Anterior segment observation display Retinal observation display Select manual mode in order to select the photographing parts of your choice in mosaic mode photography. g For details of the setting, refer to “9.3 Mosaic internal fixation target setting (Switching internal fixation target in mosaic mode photography)”.
  • Page 37 7.1 Mosaic mode photography 7.1.3 Aligning and focusing In mosaic mode photography, align for anterior segment observation only, switch to retinal observation without changing the position of the instrument, check that the patient eye is correctly fixed, and photograph. However when you see an excessive flare during retinal observation, position the digital camera appropriately before photographing.

  • Page 38: External Fixation Target

    7 Advanced photography 7.2 External fixation target When failed to complete fixation of the patient’s eye using the internal fixation target, use the external fixation target (op- tional accessory: K9L-LE57) to enable the fixation using the other eye. 7.2.1 Installing the external fixation target 1 Aligning the groove on the external fixation target mount and the chin rest, tighten two mounting screws to lock the lamp.

  • Page 39: Troubleshooting

    Troubleshooting Examples of retinal photograph Possible cause Remedies Dark shadow or bright reflection The instrument is positioned appears at the top or bottom of the too high to the patient’s eye. image. Perform all alignment steps to obtain a clear retinal image with consistent brightness.
  • Page 40 8 Troubleshooting rregularity Possible cause Remedies Adjust the focus using the retinal image since A diopter compensation lens is Focus dots do not appear. focus dots do not appear when a diopter com- inserted. pensation lens is in use. Set the shutter speed of digital camera to 1/25 sec. The flash lamp turns on but a black The shutter speed of digital image or partially chipped image is...
  • Page 41 LCD monitor. Charged voltage exceeded the ERROR 1 : HGHER VOLTAGE limit. There could be a failure Please contact Kowa or your Kowa dealer. POWER OFF AND CALL SER- of an internal circuit. VCE PERSON The error message below is dis- C h a rg e d volt a ge d oe s not played on the LCD monitor.

  • Page 42: Menu Operation

    Menu operation 9.1 Starting menu Press down “MENU” button center of menu buttons for approx. 2 seconds to access menu Menu buttons mode. Use menu buttons “G, H, F, and E” in menu mode. 9.2 Objective lens cleaning lamp Objective lens cleaning lamp illuminates when you press “ F ” button to select “ON”...
  • Page 43 9.1 Starting menu / 9.2 Objective lens cleaning lamp 9.3 Mosaic internal fixation target setting (Switching internal fixation target in mosaic mode photography) 9.3.2 Settings of auto mode Press menu button while “AUTO” is highlighted to access “MOSAIC INT- FIX AUTO MODE SETTING”. Pressing menu button while “AUTO MODE SETTING”...

  • Page 44: Other Setting Menu

    9 Menu operation When you select “NO” for the “MIRROR SELECTION”, illuminating orders are as shown below. Setting of illuminating orders Right eye Left eye Select “SET” and press menu button in “MOSAIC INT-FIX AUTO MODE SETTING” to save the settings and return to menu item selection.
  • Page 45 9.3 Mosaic internal fixation target setting (Switching internal fixation target in mosaic mode photography) 9.4 Other setting menu 9.4.2 POWER ON MODE 2 This item allows you to select the state of Blue/Brown selection switch when turning the instrument is turned ON. Setting BROWN : Brown eye (Factory setting) BLUE...
  • Page 46 9 Menu operation 9.4.5 EXTERNAL ALIGNMENT : MOSAIC In mosaic mode photography, you can set whether or not the display automatically switches back to anterior segment observation after photography. Setting AUTO : The display automatically switches back to anterior segment. MANUAL : The display does not automatically switch back to anterior segment.

  • Page 47: Maintenance And Inspection

    5. When condensation occurs repeatedly, lenses may get moldy. When such a case has occurred to you, contact Kowa or your Kowa dealer. 6. Disconnect the power supply cable when the instrument is not used for an extended period of time.

  • Page 48: Regular Nspection (By Manufacturer)

    10 Maintenance and inspection 10.3 Regular inspection (by manufacturer) In order to use this instrument safely over its useful life, we recommend you to have it inspected annually. Contact Kowa or your Kowa dealer for details and cost of inspections.

  • Page 49: Disinfection

    10.3 Regular inspection (by manufacturer) / 10.4 Cleaning the objective lens 10.5 Disinfection / 10.6 Outer cleaning / 10.7 Replacing flash lamp 10.5 Disinfection Wipe the forehead rest with rubbing alcohol as soon as a patient completes the examination. Also wipe the chin rest with rubbing alcohol when no chin rest paper is used.
  • Page 50 OFF. If it does not turn OFF even after above period of time, contact Kowa or your Kowa dealer as it may carry a risk of failure. In such a case, never touch the instrument. Discharge indicator LED illuminates only when it discharges after the instrument is turned OFF.

  • Page 51: Fuse Replacement

    (clockwise) and install it in place. 6 Connect the power cable plug to an power outlet. 10.9 Refilling and replacing consumables Order spare parts by purchase order numbers listed below to Kowa or your Kowa dealer. Part name Purchase order number...

  • Page 52: Specifications

    Specifications Shooting mode Normal / SP / Stereo (electrically switched) Stereoscopic photography method Simultaneous stereo photography Stereo photography parallax 7.4° (at the 0 diopter eye) Normal mode : 45° SP mode : 45° Field angle Stereo mode : 34° (20° horizontal and 27° vertical directions) * Some eyes may cause a flare around their circumference.

  • Page 53: Technical Information

    Technical information 12.1 Description of digital camera Release mode button Mode dial Set the mode to “ S ” Set the mode to “M” Main command dial Set the shutter speed to Multi selector Move up Move to the lower hierarchy, Confirm Move down Move to the upper...

  • Page 54: Digital Camera Settings

    12 Technical nformation 12.2 digital camera setting Ensure that the digital camera settings are correctly configured. Dial setting Custom menu Menu items Setting Menu items Setting Mode dial No memory card? LOCK Focus-mode selector Focus selector lock Set-up menu Shutter speed * Menu items Setting 5 Use Main command dial to set the shutter speed.

  • Page 55: Maging Conditions Output

    12.2 digital camera setting / 12.3 maging condition output 12.3 Imaging conditions output This instrument outputs the imaging conditions from maging condition output terminal. f you want to read the imaging conditions using application software other than that provided with the instrument, refer to the specifications below: For this purpose, you need to install FTDI “Direct (D2XX) driver Ver 2.04.06 or later”...

  • Page 56: Electromagnetic Compatibility (Iec60601-1-2)

    Electromagnetic compatibility (IEC60601-1-2) This instrument is a medical electrical instrument. Medical electrical instruments are requireed special attention to the electromagnetic compatibility (EMC). The following section describes the EMC and precautions regarding this instrument. When installing or using this instrument, read the description carefully and follow the directions described. (The EMC of this instrument was tested based on EC60601-1-2.) 1.
  • Page 57 Guidance and manufacturer’s declaration - electromagnetic emissions KOWA nonmyd WX is intended for use in the electromagnetic environment specified below. The customer or the user of KOWA nonmyd WX should assure that it is used in such an environment. Emissions test...
  • Page 58 AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the KOWA nonmyd WX is used exceeds the applicable RF compliance level above, the KOWA nonmyd WX should be observed to verify normal operation. f abnormal performance is observed, additional measures may be necessary, such as reconfiguring or relocating the KOWA nonmyd WX Over the frequency range 150kHz to 80MHz, field strengths should be less than 3 V/m.
  • Page 59 For EU market.

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